Lubricator



H. C. SMITH.

LuBmcAToR.

APPLICATION FILED MAR. 8, 1920.

1,367,211. Patented Feb. 1,1921.

aww/nto@ Unox/n ms HERBERT C. SMITH, 0F FORESTGROVE, OREGON.

PATENT oFFlc LUBRICATOR.

Specification of Letters Patent.

Application filed March 8, 1920.f SerialNo. 364,212.

T0 all/whom it may concern Be it known that I, HERBERT C. SMITH, a citizen oi the United States, residing at Forest Grove, in the county ot' Vashington and State of Oregon, have invented certain new and useful Improvements in Lubricators; and I do declare the :following tobe a full, clear and exact description ol' the invention, such as will enable others skilled in the art to which it appertains to make and use the saine.

My invention relates to improvements in lubricating devices and more particularly to those which are intended primarily for lu-` bricating gear wheels, sprockets, sprocket chains, etc. Brushes have heretofore been employed for this purpose having means for feeding the lubricant thereto, but these devices have been objectionable in that no provision has been made for renewing the brushes when they are worn to a condemning i degree. My invention, however, aims to overcome this di'liiculty by the provision of an extremely simple and inexpensive, yet a highly eilicient and durable arrangement of parts for detachably securing the brush or brushes to the lubricant feed pipe. By this arrangement, whenever a brush is no longer of use, it may be removed and a new one substituted.

Another object is to make novel provision for cleaning the lubricant outlet openings of the feedpipe, and withthis and minor objects in view, the invention residesin the novel features of construction and arrangement of parts hereinafter described and claimed.

Figure 1, of the accompanying drawings,

is a side elevation of my invention showing its application for lubricating a gear wheel.

Fig. 2 is an end elevation of the device shown in Fig. 1.

Fig. 3 is an enlarged side lubricator.

Fig. 4 is a central longitudinal sectional View.

Fig, 5 is a transverse section on the plane indicated by line 5-5 of Fig. et.

Fig. 6 is a top plan View. i In carrying out my invention I prefer to make use of the several details of construction hereinafter described and fully shown in the accompanying drawing, but it is obvious that numerous minor changes and modifications may well be made.

On the drawing the numeral 1 designates elevation of the a lubricant feed pipe which may well be rather short and coupled iat 2 to a suitably supported supply pipe 3 leading from any preferred lubricant container 4. Il have shown a pair ott brushes having backs 6 contacting with opposite sides of the pipe l, and said backs are preferably formed with longitudinal :grooves or seats 7receiving said pipe. For detachably securing the brush backs 6 to the pipe 1, I prefer to employ an arched holder 8 which straddles said pipe and backs, as shown clearly in Figs. 2 and 5. The central portion of the holder S` is by preference riveted or otherwise secured to pipe 1, as shown at 9, while its side flanges 10 contact with the sides of the brush backs G, opposite those which engage the pipe 1. Frictional contact may be` relied upon to hold the brush backs 6 in place between the flanges 10 and the pipe l, but I prefer that screws 11 shall be employed for this purpose. Between the two brushes, the pipe 1 is shown provided with a plurality of longitudinally spaced lubricant outlet openings 12. The lubricant discharged from these openings is received upon the brushes 5 and is `thus carried to the gear or the like to be lubricated. In order that a suitableinstrw ment may be forced outwardly through the openings 12 for cleaning wheneverrequired, I prefer that the side of the pipe 1 opposite said openings, as well as the holder 8, shall be provided with openings 13 alined with said openings 12. These openings 13 are normally closed by any preferred means and when such means is removed an instrument of any suitable sort may be inserted through the openings 13 and passed outwardly through the openings 12, thus unclogging the latter. For normally closing the openings 13, I have shown a plate 111 secured by screws or the like 15 to the holder 8 and provided with plugs 16 entering the openings of said holder. It will be understood, however, that any other suitable opening-closing means could well be used.

I have shown the free end of the pipe 1 closed by a removable plug 17, which plug may be removed from time to time to permit cleaning of the entire pipe. It will be understood however that this detail need not be used unless desired.

In operation, the `lubricator is suitably supported, for instance as indicated in Fig. 1, with brushes 5 disposed for contact with the gear wheel or other machine part to be Patented Feb. 1, 1921.

similar lubricating devices which have heretofo're been used, provided however with no details vof construction permitting the renewal ofrworn brushes. The entire device may be cleaned when necessary by uncovering theopenings 13 and inserting a suitable instrument as above described, and by uncorking the pipe l if found necessary.

This device is extremely simple and inexpensive, yet it is highly efficient and in ever i way desirable, and since probably the best results may be obtained from the details disclosed, suchv details may well be followed. I Wish itunderstood however that within the scope of the invention as claimed, numerous modifications maybe made, and in some instances only one brush and half of the holder '8v need be used, if it should be desirable to do so.

I claim A l. Alubricator comprising a pipe to cenv neet with a source et lubricant supply, a pair ofbrushes having backs contacting with opposite .sides of the pipe, and means for removably holding said backs in place, said pipe having a lubricant outlet between said brushes.

2.' A lubricator comprising a pipe to connect` with Aa source of lubricant supply, a pair of brushes having backs contacting with opposite sides of the pipe, and an arched holder straddling said pipe and backs'to retain them in fixed relation, said pipe having a lubricant outlet between said brushes.

3; AV lubricator comprising a pipe to cennect. with a source of lubricant supply, a pair of brushes having backs at opposite sides of said pipe and groeved to receive said pipe, andan arched holder straddling said pipe and backs to secure the latter in place.

said pipe having a lubricant outlet between said brushes.

4. A lubricator comprising av rigidly supported pipe to connect with a source oi lubricant supply, a brush having a back vided with a groove to partially receive said pipe, and means for detachably securing said pipe and back together and supporting the latter from the former, said pipe having means for supplying a lubricant to said brush.

A lubricator comprising a rigidly supported pipe to connect with a source et lubricant supply, a brush having a back contacting with one side oi said pipe, and means for detachably securing` said brush back aud pipe together and supporting the tormcr from the latter, said pipe having means .for supplying a lubricant to said brush.

6. A lubrieator comprising a rigidly supported pipe to connect with a source oi lubricant supply, a brush having a back in contact with said pipe, and a holding plate for said back extending outwardly irem the pipe and laterally in contact with the side of the brush back opposite to said pipe, the latter having a lubricant outlet adjacent said brush.

A lubricator comprising a rigidly supported pipe to connect with a source of lubricant supply, brushes having' hacks in contact with opposite sides of said pipe, an arched holder secured to said pipe and straddling said pipe and brush back to hold them in fixed relation, said pipe having lubricant openings between the brushes and said holder and pipe having other openings alined with said outlet openings to receive a cleaning device, and means for normallyv closing said openings in the holder.

8. The structure specified in claim T, saidv opening-closing means comprising a plate secured to said holder and having plugs re ceived in the openings thereof.

In testimony whereof l have hereunto my hand.

HERBERT C. SMi'lli. 

